50 - 6 x 2 + 7 = 45
1) 6 x 2 = 12
2) 50 - 12 = 38
3) 38 + 7 = 45
5 x 6 + 21 : 7 - 12:4 = 30
1) 5 x 6 = 30
2) 21 : 7 = 3
3) 12 : 4 = 3
4) 30 + 3 = 33
5) 33 - 3 = 30
5 x (40 - 33) - 4 + 8 = 39
1) 40 - 33 = 7
2) 5 x 7 = 35
3) 35 - 4 = 31
4) 31 + 8 = 39
50 - 6 x 2 + 7 = 45
1) 6 x 2 = 12
2) 50 - 12 = 38
3) 38 + 7 = 45
5 x 6 + 21 : 7 - 12:4 = 30
1) 5 x 6 = 30
2) 21 : 7 = 3
3) 12 : 4 = 3
4) 30 + 3 = 33
5) 33 - 3 = 30
5 x (40 - 33) - 4 + 8 = 39
1) 40 - 33 = 7
2) 5 x 7 = 35
3) 35 - 4 = 31
4) 31 + 8 = 39